Pipe-conduit fitting for electric installation.



W. H. VIBBER.

PIPE GONDUIT FITTING FOR ELECTRIC INSTALLATION.

APPLICATION FILED SEPT. 26, 1913.

Patented June F0 191%.

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W. H. VIBBER.

PIPE comm FITTING FOR ELEGTRIG'INSTALLATION.

APPLICATION FILED SEPT.26,1913. LEOLGQQ Patented June 30,1914.

2 SHEETS-SHEET 2.

721. P MM MJ/ 7/% m." WW4 w mm ting may assume.

v UNITED STATES PATENT omen WHEELER H. VIBZBER, OF NEW LONDON, CONNECTICUT, ASSIGN-QB OF GNE-IIALF TO THE GILLETTE-VIBBER (10., OF NEW LONDON, CONNECTICUT, A CORORATIOI L PIPE-CONDITIT FITTING FOR ELECTRIC INSTALLATION Specification. of Letters Patent.

Patent-ed Jun e 30. 3914- Application fil ed September 26, 1913. Serial N 0. 791,917.

7 '0 all whom it may concern:

Be it known that I, lVimennn H. Vienna, a citizen of the United States, rcsiding'at New London, in the county of New London and State of Connecticut, have invented a new and useful Improvement in Pipe- (Tonduit-Fittings for Electric Installation; and I do hereby declare the following, when taken in connection with the accompanying drawings and the characters of referencemarked thereon, to be a full, clear,'and e'X- act description of the same, and which said drawingsconstitute part of this application, and represent, in-

Figure 1 a reverse plan view of one form which my improved pipe-conduit fitting for electric installation may assume, the pipe being shown in section. Fig. 2 an end view thereof. l ig. 3 a view in transverse central section. Fig. 4 a reverse plan view, with the cou iiling-nut removed and one end of the box in section. Fig. 5 a view in longitudinal central section on the line a -b of Fig 2 looking toward the top of the box. Fig. 6 an inside perspective view of the box showing one of the members in full lines, andthe other in broken lines. Fig. 7 a detached'view of the coimling-nut as supplied to the trade, that is, before it is cut. Fig. 8 a plan view of one of the modified forms which my improved pipe-conduit fit- Fig. 9 a view thereof in end elevation.

h Iy invention relates to an improvement 1 tric installation, having. certain details of construction as will be hereinafter described and pointed out in the claims.

In carrying out my invention as herein shown, I employ 'a longitudinally divided two-part box the sections or parts 2 and 3 of which correspond to each other-in every substantial. particular. The lower faces of the said parts 2 and 3 are "formed midway of their length, with semicircular cuts 4 which, when the parts are assembled, to-

gether form a relatively large circular operr pipe-conduit 9 which is thereby centered with respect to the circular opening For the attachment of the coupling-nut 8 to the two-part box, it is provided at opposite points upon its periphery, with slotted lugs 10 the outwardly opening slots 11 of which receive screws 12 entering holes 13 in the box-members and 3. Under this construction, the heads of the screws "fasten the box-members to the nut 8, and through the not 8 to the pipe In order to enable my improved box-fitting to be applied to a pipe-conduit after the wires have been run in, I initially form the coupling-nut 8 with a relatively thin segment 14 which is made integral with the nut, but which may readily be sawed away ,in case it is desired to slip the nut laterally over the wires instead of longitudinally over them. In case there is no occasion to resort to the lateral application of the coupling-nut to the wires, the segment 14 can be left undisturbed and the nut 8 used as any ordinary nut would be used.

The two box-members 2 and 3 are secured together by two transversely arranged binding-screws l5 passingthrough holes formed to receive them in the ends of the. said b0x-, members, the box-member 2 having smooth bore-holes 16, and the box-member 3'having threaded holes 17. To facilitate thehssemblan'ce of the box-members 2 and 3, counterbored centering-hubs 18 are formed within the said members 2 and 3 as shown in Fi 4. These counterborcd hubs guide the threaded ends of the screws 15 into place when the members 2 and 3 are being" put together. To prevent the bonnie'mbers from being swung out of alinement by the torsional ten sion of the screws 12, I provide the respective box-members with rib-like integral p0sitioning-lugs 19 projecting beyond their lower edges, the lug of the member 2 engaging with the inner face of the member 3; and the lug of the member 3 engaging with the inner face of the member 2. The upper faces of the said box-members 2 and 3 are cut away tangular opening 21 receiving a pair of insulating frames 22 formed with semi-circular openings 23 for the outward passage -members 2 and 3 away as at 20.

It will be readily understood from the foregoing that in case the wires have been run 111 a pipe-conduit, such as 9, my 1mproved box-litting may still be applied without disturbing the connections of any of the wires by simply cutting away the thin seg-- meat 14 of the nut 8 and passing the same laterally over the wires as they emerge from the end of the pipe. The nut will then be firmly screwed, as usual, upon the threaded end of the pipe, after which the box'members 2 and 3 will be assembled with respect to the wires and to the nut and secured together by the binding-screws 15 after which the assembled box will be fastened to the nut by the screws 12, whereby the box-fitting will be firmly fastened to the pipe-conduit through the medium of the threaded coupling-nut 8 screwed thereupon. Of course my improved box-fitting is equally well adapted to be screwed to a conduit-pipe before any wires are run into it. In such use it will be unnecessary to cut away the seg ment 14 of the nut 8 in case that has not already been done.

In the modified construction shown by 8, my improved boX-fittingtakcs the form of a couplingbox, and is therefore provided at its opposite ends with couplingnuts 27 corresponding in construction, application and function, to the coupling-nut 8 already described. In this construction, the box consists of two duplicate box parts or members 28 and 29 secured together by long screws 30 and prevented from swerving frames 32 being located in an opening in one side of the box. if desired, one of the two coupling-nuts 27 might be omitted, in which case the fitting would function as a terminal fitting the same as the fitting of Figs. 1 to 7 inclusive.

Ielaimz- 1. In a pipe-conduit fitting for electric installation, the combination with a sectional box, of means for securing the sections thereof together, and a nut internally-threaded for application to the threaded end of a pipe-conduit, constructed to have the sections of the box fastened to it, and formed with a segment adapted to be cut away for the lateral application of the nut to wires already run in the pipe-conduit Without disturbing the connections of the said wires.

2, In a pipe-conduit fitting for electric instailat-ion, the combination with a sectional box comprising two corresponding members formed on one side with an opening for the reception of insulating frames, and on the other side with an opening for the entrance of the wires, of screws for holding the two sections of the box together, and a couplingnut internally threaded to adapt it to be screwed upon the threaded end of a pipeconduit provided with slotted lugs for the reception of the said screws by which the respective sections of the box are fastened to it, and formed with a thin integral segment for ready removal to adapt the nut to be laterally passed over the wires after the same have been run in the pipe-conduit and have been connected up.

In testimony whereof, I have signed this specification in the presence of two subscribing witnesses. i

' VVIIEELER H. VIBBER. Witnesses EDNA MAYNARD, I

CATHERINE SI-IEFFLO'IT. 

